Impact of micro-, mini- And multi-electrode mapping on ventricular substrate characterisation

Benjamin Berte, Katja Zeppenfeld, Roderick Tung

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


Accurate substrate characterisation may improve the evolving understanding and treatment of cardiac arrhythmias. During substrate-based ablation techniques, wide practice variations exist with mapping via dedicated multi-electrode catheter or conventional ablation catheters. Recently, newer ablation catheter technology with embedded mapping electrodes have been introduced. This article focuses on the general misconceptions of voltage mapping and more specific differences in unipolar and bipolar signal morphology, field of view, signal-to-noise ratio, mapping capabilities (density and resolution), catheter-specific voltage thresholds and impact of micro-, mini- and multi-electrodes for substrate mapping. Efficiency and cost-effectiveness of different catheter types are discussed. Increasing sampling density with smaller electrodes allows for higher resolution with a greater likelihood to record near-field electrical information. These advances may help to further improve our mechanistic understanding of the correlation between substrate and ventricular tachycardia, as well as macro-reentry arrhythmia in humans.

Original languageEnglish (US)
Pages (from-to)128-135
Number of pages8
JournalArrhythmia and Electrophysiology Review
Issue number3
StatePublished - 2020
Externally publishedYes


  • Cardiac arrhythmias
  • Electrode design
  • Re-entrant tachycardia
  • Substrate mapping
  • Ventricular substrate characterisation
  • Ventricular tachycardia

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Physiology (medical)


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